Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 168gr | Sierra MatchKing bullet and 90 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and Hodgdon LEVERevolution.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 92% | 54,331 psi | 90% | 2612 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 51,692 psi | 86% | 2644 fps | 97.9% |
| Accurate 2230 | <<locked>> | 82% | 52,199 psi | 87% | 2657 fps | 98.3% |
| Accurate 2460 | <<locked>> | 88% | 52,953 psi | 88% | 2635 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 54,099 psi | 90% | 2664 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 54,230 psi | 90% | 2690 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 53,461 psi | 89% | 2697 fps | 100% |
| Accurate LT-30 | <<locked>> | 84% | 52,083 psi | 87% | 2526 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 52,475 psi | 87% | 2543 fps | 100% |
| ADI AR 2206H | <<locked>> | 94% | 53,156 psi | 88% | 2684 fps | 98.8% |
| ADI AR 2207 | <<locked>> | 82% | 53,229 psi | 88% | 2546 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 54,215 psi | 90% | 2677 fps | 98.4% |
| ADI AR 2219 | <<locked>> | 84% | 51,547 psi | 86% | 2631 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 52,837 psi | 88% | 2651 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 92% | 51,721 psi | 86% | 2641 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 54,041 psi | 90% | 2746 fps | 99.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 52,605 psi | 87% | 2776 fps | 98% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 53,809 psi | 89% | 2697 fps | 99.3% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 52,823 psi | 88% | 2697 fps | 99.4% |
| Alliant Reloder-10x | <<locked>> | 86% | 51,358 psi | 85% | 2582 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 53,853 psi | 89% | 2717 fps | 98.6% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 47,021 psi | 78% | 2690 fps | 98.3% |
| Alliant Reloder-7 | <<locked>> | 82% | 54,389 psi | 90% | 2566 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 54,302 psi | 90% | 2569 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 52,852 psi | 88% | 2697 fps | 97.9% |
| Bofors RP3ᴾ | <<locked>> | 100% | 53,113 psi | 88% | 2710 fps | 99.5% |
| Hodgdon Benchmark | <<locked>> | 90% | 52,141 psi | 87% | 2595 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 92% | 51,039 psi | 85% | 2674 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 90% | 52,924 psi | 88% | 2759 fps | 98.5% |
| Hodgdon H322 | <<locked>> | 88% | 53,722 psi | 89% | 2661 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 51,372 psi | 85% | 2638 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 51,459 psi | 85% | 2664 fps | 97% |
| Hodgdon H4198 | <<locked>> | 82% | 53,998 psi | 90% | 2569 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 53,621 psi | 89% | 2697 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 51,880 psi | 86% | 2723 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,026 psi | 57% | 1585 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 51,996 psi | 86% | 2654 fps | 99% |
| IMR 3031 | <<locked>> | 94% | 52,504 psi | 87% | 2694 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 53,809 psi | 89% | 2664 fps | 98.5% |
| IMR 4198 | <<locked>> | 86% | 52,098 psi | 87% | 2546 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 51,938 psi | 86% | 2700 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 92% | 52,837 psi | 88% | 2651 fps | 99.5% |
| Lovex D073.4 | <<locked>> | 82% | 52,997 psi | 88% | 2644 fps | 100% |
| Lovex D073.5 | <<locked>> | 88% | 52,721 psi | 88% | 2638 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 94% | 51,851 psi | 86% | 2667 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 53,998 psi | 90% | 2625 fps | 98.9% |
| Lovex S062 | <<locked>> | 98% | 52,953 psi | 88% | 2664 fps | 99.6% |
| Norma 200 | <<locked>> | 82% | 51,474 psi | 86% | 2559 fps | 100% |
| Norma 201 | <<locked>> | 94% | 52,170 psi | 87% | 2641 fps | 99.5% |
| Norma 202 | <<locked>> | 94% | 52,214 psi | 87% | 2648 fps | 100% |
| Norma 203B | <<locked>> | 98% | 52,924 psi | 88% | 2703 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 98% | 53,316 psi | 89% | 2726 fps | 98.7% |
| Ramshot TAC | <<locked>> | 92% | 53,708 psi | 89% | 2657 fps | 96.6% |
| Ramshot Wild Boar | <<locked>> | 92% | 52,402 psi | 87% | 2680 fps | 98.7% |
| Ramshot X-Terminator | <<locked>> | 88% | 51,111 psi | 85% | 2605 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,214 psi | 57% | 1624 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 52,721 psi | 88% | 2641 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 53,621 psi | 89% | 2779 fps | 98.6% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 50,241 psi | 83% | 2759 fps | 100% |
| Rottweil R 901 | <<locked>> | 92% | 53,113 psi | 88% | 2628 fps | 100% |
| Rottweil R 902 | <<locked>> | 96% | 52,460 psi | 87% | 2635 fps | 99.5% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 49,371 psi | 82% | 2648 fps | 98.9% |
| Shooters World AR Plus | <<locked>> | 82% | 52,997 psi | 88% | 2644 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 94% | 51,851 psi | 86% | 2667 fps | 100% |
| Shooters World Precision | <<locked>> | 98% | 52,953 psi | 88% | 2664 fps | 99.6% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 52,895 psi | 88% | 2612 fps | 99.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 53,214 psi | 88% | 2306 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 52,243 psi | 87% | 2644 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 51,358 psi | 85% | 2707 fps | 98.5% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 52,286 psi | 87% | 2598 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 51,401 psi | 85% | 2631 fps | 96.8% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 51,779 psi | 86% | 2661 fps | 98.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 51,692 psi | 86% | 2556 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 53,751 psi | 89% | 2589 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 54,157 psi | 90% | 2690 fps | 99.7% |
| Somchem S335 | <<locked>> | 94% | 53,505 psi | 89% | 2595 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 54,143 psi | 90% | 2677 fps | 98.8% |
| Somchem S355ᴾ | <<locked>> | 100% | 50,125 psi | 83% | 2648 fps | 98.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,042 psi | 60% | 2477 fps | 96.9% |
| Vihtavuori N120 | <<locked>> | 82% | 53,142 psi | 88% | 2497 fps | 100% |
| Vihtavuori N130 | <<locked>> | 88% | 51,576 psi | 86% | 2533 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 51,416 psi | 85% | 2549 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 54,070 psi | 90% | 2651 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 52,736 psi | 88% | 2628 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 48,675 psi | 81% | 2592 fps | 99.4% |
| Vihtavuori N530 | <<locked>> | 92% | 53,548 psi | 89% | 2651 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 98% | 54,230 psi | 90% | 2671 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 44,251 psi | 74% | 2526 fps | 97.6% |
| Winchester 748 | <<locked>> | 92% | 51,938 psi | 86% | 2690 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 96% | 54,462 psi | 90% | 2713 fps | 99.3% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 37,449 psi | 62% | 2352 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 48,225 psi | 80% | 2592 fps | 97.3% |
| Accurate 2230 | <<locked>> | 80% | 48,733 psi | 81% | 2602 fps | 97.8% |
| Accurate 2460 | <<locked>> | 80% | 40,698 psi | 68% | 2444 fps | 99.3% |
| Accurate 2495 | <<locked>> | 80% | 30,095 psi | 50% | 2260 fps | 99.5% |
| Accurate 2520 | <<locked>> | 80% | 35,781 psi | 59% | 2385 fps | 98.2% |
| Accurate 4064 | <<locked>> | 80% | 28,471 psi | 47% | 2238 fps | 97.1% |
| Accurate LT-30 | <<locked>> | 80% | 46,180 psi | 77% | 2438 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 46,543 psi | 77% | 2454 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 82% | 36,666 psi | 61% | 2392 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 50,038 psi | 83% | 2503 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 39,943 psi | 66% | 2438 fps | 95.4% |
| ADI AR 2219 | <<locked>> | 80% | 45,179 psi | 75% | 2536 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,463 psi | 61% | 2362 fps | 96.6% |
| Alliant AR-Comp | <<locked>> | 80% | 34,606 psi | 57% | 2375 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 41,742 psi | 69% | 2539 fps | 97.5% |
| Alliant Power Pro 2000-MR | 45 gr | 90% | 43,047 psi | 72% | 2605 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 34,838 psi | 58% | 2356 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 33,910 psi | 56% | 2359 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 42,917 psi | 71% | 2457 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 39,349 psi | 65% | 2467 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 92% | 36,114 psi | 60% | 2464 fps | 95% |
| Alliant Reloder-7 | <<locked>> | 80% | 50,894 psi | 85% | 2516 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 44,657 psi | 74% | 2431 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 40,683 psi | 68% | 2490 fps | 95.1% |
| Bofors RP3 | <<locked>> | 86% | 33,141 psi | 55% | 2356 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,653 psi | 64% | 2365 fps | 97.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,997 psi | 56% | 2365 fps | 96.6% |
| Hodgdon CFE223 | <<locked>> | 82% | 40,248 psi | 67% | 2536 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 41,249 psi | 69% | 2470 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 80% | 41,756 psi | 69% | 2487 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 94% | 45,165 psi | 75% | 2562 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 50,792 psi | 84% | 2523 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 34,708 psi | 58% | 2356 fps | 95.2% |
| Hodgdon LEVERevolution | 41.2 gr | 84% | 35,114 psi | 58% | 2411 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,367 psi | 42% | 1417 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 35,679 psi | 59% | 2362 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 33,170 psi | 55% | 2365 fps | 99.5% |
| IMR 4064 | <<locked>> | 88% | 39,436 psi | 66% | 2421 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 43,758 psi | 73% | 2425 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 35,578 psi | 59% | 2402 fps | 95% |
| IMR 8208 XBR | <<locked>> | 80% | 36,463 psi | 61% | 2362 fps | 96.6% |
| Lovex D073.4 | <<locked>> | 80% | 49,458 psi | 82% | 2592 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 40,263 psi | 67% | 2438 fps | 98.5% |
| Lovex D073.6 | <<locked>> | 80% | 32,256 psi | 54% | 2320 fps | 97.2% |
| Lovex S060 | <<locked>> | 82% | 37,927 psi | 63% | 2349 fps | 95.6% |
| Lovex S062 | <<locked>> | 82% | 32,387 psi | 54% | 2290 fps | 95.4% |
| Norma 200 | <<locked>> | 80% | 48,414 psi | 80% | 2516 fps | 100% |
| Norma 201 | <<locked>> | 80% | 33,895 psi | 56% | 2310 fps | 95.9% |
| Norma 202 | <<locked>> | 80% | 33,750 psi | 56% | 2326 fps | 98.3% |
| Norma 203B | <<locked>> | 86% | 36,289 psi | 60% | 2411 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 88% | 38,363 psi | 64% | 2467 fps | 95.4% |
| Ramshot TAC | <<locked>> | 88% | 47,210 psi | 78% | 2556 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 37,652 psi | 63% | 2421 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 39,523 psi | 66% | 2405 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,396 psi | 42% | 1450 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 40,828 psi | 68% | 2448 fps | 98.9% |
| ReloadSwiss RS 52 | 41.7 gr | 86% | 38,159 psi | 63% | 2507 fps | 95% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 31,923 psi | 53% | 2372 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 37,434 psi | 62% | 2365 fps | 98.8% |
| Rottweil R 902 | <<locked>> | 80% | 32,097 psi | 53% | 2260 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 88% | 33,315 psi | 55% | 2352 fps | 95% |
| Shooters World AR Plus | <<locked>> | 80% | 49,458 psi | 82% | 2592 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,256 psi | 54% | 2320 fps | 97.2% |
| Shooters World Precision | <<locked>> | 82% | 32,387 psi | 54% | 2290 fps | 95.4% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 43,178 psi | 72% | 2457 fps | 97.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 50,415 psi | 84% | 2270 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 45,469 psi | 76% | 2539 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 37,246 psi | 62% | 2448 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 43,294 psi | 72% | 2464 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 44,570 psi | 74% | 2523 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 37,492 psi | 62% | 2408 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,549 psi | 59% | 2283 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,921 psi | 48% | 2159 fps | 97.8% |
| Somchem S321 | <<locked>> | 80% | 38,609 psi | 64% | 2431 fps | 97.5% |
| Somchem S335 | <<locked>> | 80% | 35,143 psi | 58% | 2293 fps | 99.1% |
| Somchem S341 | <<locked>> | 84% | 38,740 psi | 64% | 2425 fps | 95.7% |
| Somchem S355 | <<locked>> | 88% | 34,519 psi | 57% | 2362 fps | 95.1% |
| Somchem S365 | <<locked>> | 96% | 31,749 psi | 53% | 2372 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 50,009 psi | 83% | 2457 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 40,437 psi | 67% | 2365 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 35,520 psi | 59% | 2293 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 30,632 psi | 51% | 2264 fps | 99.5% |
| Vihtavuori N140 | <<locked>> | 80% | 31,879 psi | 53% | 2267 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 86% | 30,980 psi | 51% | 2260 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 36,187 psi | 60% | 2356 fps | 96.6% |
| Vihtavuori N540 | <<locked>> | 80% | 30,560 psi | 51% | 2251 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 36,477 psi | 61% | 2375 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 34,737 psi | 58% | 2385 fps | 97.1% |
| Winchester StaBALL Match | <<locked>> | 82% | 34,243 psi | 57% | 2359 fps | 95.1% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 114 powders for .308 Win. Ackley Improved loaded with the .308 | 168gr | Sierra MatchKing. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,779 fps; across all powders the maximum-charge window runs from 1,585 fps to 2,779 fps. Accurate 4064 gives the best case fill at 100 %, and 114 of the 114 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 168.0 gr projectile in 0.308" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 4064, Accurate 4350, ADI AR 2208 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Alliant Power Pro 2000-MR, ReloadSwiss RS 52, Hodgdon LEVERevolution rank at the top here: for .308 Win. Ackley Improved with the .308 | 168gr | Sierra MatchKing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 4350, Alliant Reloder-16 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.